Hoshizaki F-300BAF service manual Problem, Possible Cause, Remedy

Problem	Possible Cause		Remedy
	j) Water Control Relay	1. Bad contacts.	1. Replace.
		2. Open coil.	2. Replace.
	k) Water Valve	1. Coil winding opened.	1. Replace.
	l) Shut-off Valve	1. Closed.	1. Open.
		2. Water failure.	2. Wait until water is
			supplied.
	m)Plug and Receptacle	1. Disconnected.	1. Connect.
	(Control Box)
		2. Loose terminal.	2. Repair terminal
			connection.
[2] Water does not stop,	a) Float Switch	1. Bad contacts.	1. Check for continuity and
and the gear motor			replace.
will not start.
		2. Float does not move	2. Clean or replace.
		freely.
	b) Water Control Relay	1. Contact fused.	1. Replace.
		2. Coil winding opened.	2. Replace.
	c) Flush Water Valve	1. Valve seat clogged	1. Clean or replace.
		and water leaking.
	d) Hoses	1. Disconnected.	1. Connect.
[3] Water has been	a) Bin Control	1. Open	1. Bin full, check for
supplied, but the gear			continuity on proximity
motor will not start.			switch.
	b) Water Control Relay	1. Low water safety	1. Replace relay.
		circuit open
		(bad conacts ).
	c) Control Timer	1. Fails to operate gear	1. Check water control relay
	(Printed Circuit Board)	motor relay.	circuit.
	d) Gear Motor Fuse	1. Blown.	1. Check gear motor
			amperage, bearing
			wear (see "V. F. 1. Upper
			Bearing Wear Check"),
			supply voltage.
	e) Gear Motor Thermal	1. Open.	1. Check gear motor
	Protector		bearings, voltage supply.
	f) Gear Motor	1. Open windings.	1. Replace gear motor.
		2. Locked bearings	1. Replace gear motor.
[4] Gear motor starts,	a) Gear Motor Protect	1. Open coil.	1. Replace.
but compressor will	Relay
		2. Open contacts.	2. Replace.
not start or operates
	b) Timer Board Relay	1. Bad contacts.	1. Check for continuity and
intermittently.
			replace.
		2. Coil winding opened.	2. Replace timer.
	c) Starter	1. Bad contacts.	1. Check for continuity and
			replace.
		2. Coil winding opened.	2. Replace.
		3. Loose connections.	3. Tighten.
	d) Start Capacitor or Run	1. Defective.	1. Replace.
	Capacitor

30